On-Line Particle Size Analyzer
On-line coarse particle size analyzers can be used in crushing circuits to monitor ore size distribution of both feed and product streams. Fast and accurate information concerning these particle size distributions can improve the efficiency and lower crushing costs. There are several coarse particle on-line size analyzers commercially available, but most of them suffer from […]
Horizontal Cycloning
The invention is based on the discovery that the reason why big hydrocyclones which are positioned vertical need a comparatively high feed pressure is that, owing to their great length, these hydrocyclones contain such a tall liquid column that gravity becomes an important factor and influences the operation of the hydrocyclone. If however, the hydrocyclone […]
Compare High Frequency Screens & Hydrocyclones
Hydrocyclones are currently the most commonly used classifiers in wet closed circuit grinding systems. Some recent papers, however, give evidence that high frequency vibrating screens can be a viable alternative to hydrocyclones for a wide variety of grinding applications. In principle, classifier selection for closed circuit grinding should be based on an evaluation of the […]
High Efficiency Separator
The industrial grinding process has undergone changes to better address the market and economic needs. Fine grinding of dry materials has developed to the point where classifying linings and fine ball charges improve mill efficiencies. Roller mills as well have wide acceptance due to their power efficiencies. The mill, by its nature, cannot provide the […]
Air Classification Working Principles
Regardless of the mechanical design features of a particular air classifier certain basic principles apply. Specifically, there are two forces at work: An air drag force An inertial or centrifugal force. The air drag force has an increasing influence as particles become smaller. A very small low mass particle is easily carried along with an […]
Dense Media Properties on the Performance of a Dense Medium
The effect of the stability and rheological properties of magnetite dense medium on the separation performance of a 6″ dense medium cyclone (DMC) is studied with the use of fine density tracers. The tests in which different size fractions of magnetite are used to prepare the dense media reveal that at low medium densities (<1.5 […]
Horizontal Cyclones
Horizontal cyclones can reduce the quantity of fines in the cyclone underflow as described by Hochshied (1984). A number of plants are now operating horizontal cyclones with a substantial reduction of the circulating load and the amount of fines returning to the mill. However, circuit capacity did not increase due to the reduction of fines […]
Size Measurement by On-Line Particle Size Analyzer
The knowledge of aggregate size under various chemical and hydrodynamic conditions is very important for selective agglomeration, flotation and water clarification processes. Traditionally, aggregate size measurements are conducted using an ex-situ technique or in a diluted suspension. In either case, the measurement occurs in an environment that does not resemble the actual conditions under which […]
Ultrafine Magnetite – Effect on Dense-Medium
Testing was conducted previously to investigate the effects of cyclone geometry and flow rate on the occurrence of apparent bypassing when separating 150×25µm anthracite in a 25mm diameter cyclone. Apparent bypassing indicates that some fraction of the feed coal bypasses or short circuits directly to the clean coal and/or refuse streams, independent of the separating […]
Laboratory Test Sieves
911MPE is a proud supplier of a Top Brand of laboratory particle size analysis equipment. Select from any of the ISO Certified screen opening sizes below. Precision Test Sieve Features We offer qualitative advantages compared with other manufacturers in each detail. It is profitable to compare the details.Multiple advantages due to the sum of the details: Designed […]